_______ is certain, people’s living conditions in China have improved a lot since the 1980s.
I send you my revised catalogue and price list, ______ you may find something that suits you.
Under the new schedule, teachers of primary and secondary schools must _____each class on time instead of adding extra lessons.
—Hi, Tom. The new iPad6 only cost me 150 dollars. —Really? It was a real ______.
Appointed as ____chairman to China, Mr. Xi was determined to serve his country____ heart and soul.
The school had promised to keep parents fully _____ about the conditions of their children at school.